Replication redefined: How we built a low-latency, multi-tenant data replication platform | Datadog

This post details the evolution of Datadog's data replication capabilities, focusing on the development of a managed, multi-tenant data replication platform. It describes the initial challenge of scaling a shared Postgres database for search workloads, leading to the re-architecture of routing search queries to a dedicated search platform with dynamically denormalized data, achieving up to 97% reduction in page load times. The platform's provisioning process was automated using Temporal workflows, breaking down complex setup into modular, reliable tasks. The architectural choice of asynchronous replication is highlighted for achieving low latency and high throughput, enabling rapid data freshness for downstream systems while maintaining observability and operational resilience.